Valve for furnace regenerative chambers



C. P. BYRNES VALVE FOR FURNACE REGENERATIVE CHAMBERS Filed June 27, 19282 Sheets-Sheet l R O T N E V m Feb, 9, 1932.. c. P. BYRNES 1,344,866,

VALVE FOR FURNACE REGENERATIVE CHAMBERS Filed June 27, 1928 2Sheets-Sheet 2 INVENTOR Z4 ywiwu Patented Feb. 9,' 1932 UNITED STATE-SCLARENCE P. BYBNES, 01" SEWICK LEY, PENNSYLVANIA VALVE FOR FURNACEREGENEBATIV'E CHAMBERS Original'application filed December 80, 1921,Serial No. 525,853. Divided and this application filed June B7, 1928.Seriallo. 288,677.

This invention relates to valves for furnace regenerative chambers, andparticularly to a valve of the sliding type. This application is adivision of my copending application Serial No. 525,853, filed December30th, 1921.

Valves for regenerative chambers must be of relatively simple structure,and must be free from warping, and must retain their shape under adversetemperature conditions so as to remain reasonably gas-tight at alltimes. I provide a valve comprising a seat and a valve member fittingthereon. The valve member comprises a metal skeleton or frame which ispreferably water-cooled. This skeleton or frame forms the seat engagingportion of the valve member, and by reason of the water cooling, it ismaintained free from warping. The water-cooling also eliminates thetendency of the frame to cut away when it is slid on the valve seat.Such ilzlendency is very marked when the metal is ot. The frame orskeleton of the valve member is filled in with refractory material, thusforming a relatively inexpensive and durable construction. The metallicframe of the valve member is preferably made with 2.

wrought portion adapted to form a-water conduit and a metal portion castabout it, 39 which stiffens and reinforces the wrought metal portion andis shaped to receive the refractory. material. The wrought metal portionmay be a hollow frame of special shape and made, for example, from steelplates welded together, or it may be made of .wrought metal pipe. Ineither case there is provided a water space which may be tested beforethe cast metal portion is formed therearound. In the accompanyingdrawings illustrating the present preferred embodiment of the inventionand certain modifications thereof,

Figure. 1 is a vertical section through a regenerative chamber having myimproved 1 valve applied thereto,

Figure 2 is a top plan view of the valve member, 7

Figure 3 is a vertical longitudinal section taken on the line IIIIII ofFigure 2, Figure 4 is a perspective view of the wrought metal portion ofthe frame or skeleton,

Figure 5 is a top plan view of the valve seat Figure 6 is a view corresending to Figure 2 but showing a modified orm of valve, 7

' Figure? is a vertical transverse section taken on the line VII-VII ofFigure 6, and

Figure 8 is a vertical transverse section taken on the line VIIIVI]I ofFigure 6. Figure 1 shows a regenerative chamber 2 of any desired type,provided with valves 3 and 4 for controlling the passage of gases centthe opening 6. This provides space for the valve when it is in its openposition and makes a substantially leak-proof construction r Each of thevalves 3 and 4 comprises a metal frame having a hollow wrought metalportion 8 and a cast portion 9, and a refractory portion 10 which ismade arch-like and fills the opening in the metal frame. The wroughtmetal portion 8 is made of welded plates and is shaped as shown inFigure 1 so as to avoid steam pockets. It is provided with clips 11 toreceive an actuating rod 12. The rod 12 extends through an openingformed'in the end of the housing 7 and is connected through an operatingcylinder (not shown).

The member 8 is provided with a connection 13 to receive a pipe 14. Aninterior pipe 1 extends through the pipe 14 and is connected to a supplyof cooling water. The pipe 15, extends through the hollow member 8 andterminates at a point remote from the connection 13 so as to insure acirculation of cooling water. The spent water is taken ofi thru the pipe14 and a connection 16.

The cast metal portion 9 is preferably poured around the wrought metalportion 8 and has'its interior Walls inclined as shown at 17 to form aproper foundation for the arch of the refractory material 10.

The valve seat is shown in detail in Figure 5. It comprises a casting 18having a water ,cooling pipe 19 cast therein. The casting is providedwith extensions 20 which sup port the valve when it is slid into itsopen position.

Figures 6 to 8 inclusive show a modified form of valve wherein a castmetal frame 9a has a wrought metal pipe 21 embedded therein to providefor the circulation of cooling water. The frame 9a carries ,a tongue 22lying in a sleeve 23. Spacedholes are bored in the tongue 22 and thesleeve 23 and the parts are connected by a loose pin 24. This permits ofadjusting the position of the valve relative to its operating rod 25 sothat the open or closed position of the valve may be varied as desired.I preferably also form the valve, as shown in Figure 3, wherein theright hand portion of the hollow metallic frame is of less height thanthe left hand, thus avoiding the formation of steam pockets. A vent maybe provided in the highest or deepest portion of the cavity to allowventing of any steam formed.

No claim is made herein to the regenerator system or method of operatingsingle surface regenerators, such claims being embodied in my copendingapplication Ser. No. 500,002, filed December 4. 1930, as a continuationin part of application Ser. No. 525,853, filed December 30, 1921.

While I have illustrated and described a preferred form of theinvention, it will be understood that it is not thus limited, but may beotherwise embodied within the scope of the following claims.

I claim:

; 1. In a valve system for hot gases, a horizontally extending metallicseat surrounding a. passage and having an enclosed passage therein forcooling fluid, connections for circulating a cooling fluid therethrough,a horizontally extending valve cooperating with said seat and subject tohot gases on its upper face, said valve having a surrounding metallicframe with a central opening therethrough, said frame having an enclosedpassage for cooling fluid, refractory material filling the centralopening, and connections for circulating'water through the passage inthe surrounding valve frame.

2. In a valve system for hot gases, a horizontally extending metallicseat surrounding a passage and aving an enclosed passage therein forcooling fluid, connections for circulating a cooling fluid therethrough,ahorizontally extending valve cooperating with said seat and subject tohot gases on its upper face, said valve having a surrounding metallicframe with a central opening therethrou h, said frame having an enclosedpassage or my hand.

CLARENCE P. BYRNES.

